Q: What are the prime factors of the number 100,051,512?

 A: 2, 3, 11, 131, 263

Why are those the prime factors of the number 100,051,512?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 100,051,512

100,051,512
Factor Arrows
250,025,756
Factor Arrows
225,012,878
Factor Arrows
212,506,439
Factor Arrows
34,168,813
Factor Arrows
11378,983
Factor Arrows
1134,453
Factor Arrows
131263

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 131, 263

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 11 x 131 x 263 = 100,051,512

This can also be written as 23 x 31 x 112 x 1311 x 2631 = 100,051,512

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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